Contaminated Site Clean-up Opportunities in China

As reported by the South China Morning Post, China’s government recently approved a new plan to tackle growing pollution threats in its countryside, and will strive to clean up contaminated rural land and drinking water and improve waste management.

The new plan, approved “in principle” by the Ministry of Ecology and Environment is the summer also mandates cuts in fertilizer and pesticide use and improved recycling rates throughout the countryside.

Industrial pollution of land in China. The authorities have been reluctant to divulge details of the localised scale of the problem (Image by JungleNews)

China is in the fifth year of a “war on pollution” designed to reverse the damage done by decades of tremendous economic growth, but it has so far focused primarily on air quality along the industrialized eastern coast, especially around the capital Beijing.

China’s countryside has struggled to cope with land and water pollution caused not only by unsustainable farming practices, but also by poorly regulated, privately-owned mines and manufacturing plants, as well as rising volumes of plastic waste.

Rehabilitating contaminated land has become a matter of urgency for the Chinese government, which is under pressure to maximize food production while at the same time it is setting aside one-quarter of the country’s land as off-limits to development by 2020.

Total arable land declined for a fourth consecutive year in 2017 as a result of new construction and tougher environmental requirements, the government said in May.

The State Council published a plan in February to deal with growing volumes of untreated rubbish dumped in the countryside, promising to mobilise public and private funds to make “noticeable improvements” to the living environment of rural regions by 2020.

It vowed to restore wetlands, plant trees and eliminate “disorderly” rural construction to improve the appearance of China’s villages, and would also focus on improving garbage and sewage treatment.

In August, the Chinese government enacted the Soil Pollution Prevention and Control Law.  This is the first time China has enacted a law targeting soil pollution.  For existing soil pollution, the law holds polluters and users (as it is rare in China for individuals to own land) accountable for a series of risk management and remediation obligations, with the polluters being primarily responsible.

According to an article by IISD, the estimated cost for remediation efforts between 2016 and 2020 at $1.3 trillion (USD). The government itself estimates it might be able to cover only a small fraction of the overall cost.  During China’s the 12th Five-year Plan (2011–2015), only $4.5 billion) was allocated to soil remediation, mainly for urban areas.

Combine polluter payments with government support and a prohibitive capital gap still exists in China’s efforts to restore land and protect public health. This gap will have to be filled by private sources.

Can a Saskatoon brownfield be transformed into fertile green space?

The City of Saskatoon, Saskatchewan is in the process of implementing a Brownfield Renewal Strategy that it deems essential to growth in its main corridors. The initiative aims to assess and prioritize redevelopment potential of abandoned, vacant, derelict, or underutilized properties along the City’s major corridors that may have or do have perceptions of contamination.

The results of the brownfields evaluation will lead to the formulation of an incentive program that will help overcome financial and environmental barriers for redevelopment, as well as provide contamination management plans for future development.

One recent brownfield development in Saskatoon was initiated by a not-for-profit organization called CHEP Good Food.  CHEP has been promoting food security in Saskatoon for nearly 30 years. The organization is currently working toward restoring a plot of contaminated land to an agricultural plot of land.

The non-profit group, which works to promote food security, has already won a grant from CN Rail that will help them plant native trees and bushes at another brownfield site in Saskatoon and to restore the soil.   The project received the CN EcoConnexions grant through Tree Canada / Arbres Canada and Canadian National Railway Company to plant native trees and shrubs on the site.

The Askîy Project grows crops on brownfield land in Saskatoon using re-purposed containers. (CBC)

A previous fruit and vegetable garden project by CHEP began in 2014 under a different name as rooftop gardens at the University of Saskatchewan. The project relocated to the brownfield site  in 2015 and was renamed the Askîy Project — which means “Earth” in Cree.

The latest CHEP project is more ambitious than the existing Askîy Project.  It involves growing trees and bushes directly in the soil as well as remediation the site.  A professor from the University of Saskatchewan, Susan Kaminskyj, will oversee experimental bio-remediation at the site.

The bio-remediation will consist of utilizing native a fungi that will assist the plants in growing but will also biodegrade the petroleum hydrocarbon contamination at the brownfield site.

Professor Kaminskyj explained in an interview with CBC, that the microbe is a common fungus, but one with “unique abilities.”  A property in the fungus allowed plants to grow and thrive on coarse Oil Sands tailings.  In early field trials, Professor Kaminskyj’s team found more than 90 per cent of dandelion seeds treated with the fungus sprouted on coarse tailings while no untreated seeds sprouted. The researchers also found the fungus was able to grow with diesel, crude oil and similar materials as its only nutrient source.

 

 

 

Former Contaminated Mine Site in NWT Declared Clean

The Government of Canada recently announced that the former Tundra Gold Mine, located in the Northwest Territories, has been successfully remediated.  The cost of clean-up was $110 million and was paid for by the government.

Tundra Mine was briefly operational in the 1960’s and was used as a dumping ground in the 1980’s.  It’s former owner, Royal Oak Mines went bankrupt in 1999.

Remediation of the site included revegetating soil, sealing mine openings, consolidating and isolating tailings and waste rock, treating petroleum hydrocarbon impacted soils, erecting barriers for erosion control, and removing buildings.  The clean-up project lasted more than a decade.

Though some re-vegetation has begun, the land – around 240 km north-east of Yellowknife – will remain recognizably an old industrial site for decades to come.

Tundra Mine Site post clean-up (Photo Credit: Jamie Malbeuf/CBC)

Dominic LeBlanc, Canada’s newly installed minister for northern affairs, called Tundra’s remediation “a great example of the hard work of northerners and the importance of partnerships with local Indigenous communities.”  Northern residents represented 76 percent of the project’s suppliers and 61 percent of its employees.  The Minister stated that the restoration will help local Dene and Métis peoples once again use the land for traditional practices.

The Canadian government will continue to oversea that monitoring of the site to ensure it remains stable.  Monitoring, using a combination of on-site equipment and drones, will cost an unspecified further sum each year.

More work to be done remediating the North

According to an article in Cabin Radio, Tundra’s successful clean-up remains a drop in the larger ocean of contaminated sites within the NWT.  Tundra is the 24th site under federal supervision to have reached this stage, a spokesperson for Crown-Indigenous Relations and Northern Affairs Canada said by email to on Cabin Radio.

federal webpage last updated in 2013 suggests Canada is responsible for more than 50 significant contaminated sites in the territory, including those 24.

separate federal website lists 1,634 contaminated sites within the Northwest Territories, where a contaminated site is defined by the Federal Goverment as “one at which substances occur at concentrations (1) above background (normally occurring) levels and pose or are likely to pose an immediate or long term hazard to human health or the environment, or (2) exceeding levels specified in policies and regulations.”

Some entries on the latter list are considered remediated and their files closed. Some are smaller sites not felt worthy of their own, separate clean-up projects.  Several dozen of them, for example, are grouped under one project to clean up the Canol Trail, a World War Two initiative which left contaminated soil, asbestos, and a range of hazardous materials strewn across 355 km of the Sahtu.

In the 2017-18 financial year, public records show federal agencies were obliged to spend money on some 275 separate contaminated sites in the Northwest Territories.  $157,000 was spent assessing a range of those sites, while a little over $103 million was spent on remediation work.

Of that figure, around $23.6 million was spent remediating the Tundra site in that financial year.

Unsurprisingly, Yellowknife’s Giant Mine – considered among the most toxic sites in Canada, harbouring 237,000 tonnes of poisonous arsenic trioxide in underground chambers – was the only site receiving more remediation money.

In the same period Canada spent just over $36 million on Giant, where full remediation work does not even begin until 2020.

Giant, like Tundra, was owned by Royal Oak when the company collapsed and the site became an unwanted federal problem. The full bill for Giant’s clean-up and maintenance – a program of indefinite, certainly decades-long duration – is expected to reach $1 billion in today’s money.

Tundra Mine 1963 (Photo Credit: Gerry Riemann)

 

Developer takes Alberta to appeal board over former Edmonton wood treatment plant

As reported by Global News, Cherokee Canada is fighting five enforcement orders imposed by Alberta Environment and Parks (AEP) connected to the former Domtar Wood Treatment Facility located in Edmonton.  AEP has been conducting an investigation on properties associated with the former Wood Treatment Plant. As a result of the investigation, a number of Enforcement Orders were issued to the current owners, Cherokee Canada.

Nearby residents, concerned by off-site migration of wood treatment chemicals, have been kept up-to-date of the results of the AEP investigation and subsequent enforcement actions. Contaminants from a historical wood treatment processing plant continue to exist on property formerly occupied by the Domtar Wood Treatment Plant.  This contamination, which originated prior to 1987, consists of benzene, dioxins and furans, free hydrocarbons, naphthalene, polycylic aromatic hydrocarbons (PAH) mixtures, and pyrene.

AEP stated in a news release that it issued the Enforcement Orders to ensure the responsible parties implement appropriate remedial measures and mitigate the potential risks that have been identified.  The latest Enforcement Orders require that the source of the contamination be controlled and remedial measures be implemented in specific areas of the property.

Off-site testing at lands adjacent to Cherokee Canada development (Photo Credit: CTV Edmonton)

Results of off-site testing for contamination in early 2018 found that contamination had not migrated off-site and that there are no health concerns in the surface soil of people’s properties. The off-site testing program was conducted by an independent third-party consulting firm under the direction of AEP.

Cherokee Canada, the developer has started turning the site of the old Wood Treatment Plant in northeast Edmonton into a new residential community but the current and ongoing legal proceedings have halted the project.  “It’s been very difficult because it’s effectively frozen our activities for three years now,” said John Dill, Cherokee Canada’s managing partner.  “It’s very expensive to go through this process, ” he added.

Houses have already been built in the neighbourhood but recently, the AEP questioned the safety of the soil.  AEP said third party testing at the site found chemicals dangerous to human health. The enforcement orders require Cherokee to remediate any contamination.

“The core aspect of these orders is to basically remove potentially large amounts of soil from these sites,” said Gilbert Van Nes, general counsel for the Environmental Appeals Board. “Domtar and Cherokee disagree that this is necessary.”

Both Cherokee Canada and Domtar have completed remediation efforts but AEP, through the enforcement orders, are claiming that they didn’t go far enough.

“Our approach was to take the contaminated soil, isolate it in a separate soil berm — again, a common practice in other jurisdictions — and ensure the soil was protected from exposure to other receptors, humans, animal,” Dill said.  “The disagreement is over how we can remediate this site so it’s safe for residential standards so that we can complete our residential development and restore the site that was previously contaminated to productive use.”

Three environmental experts are heading up the independent appeal board.  The board will pass its findings on to the environment minister and Shannon Phillips will make the final decision on whether construction can resume. However, a decision is not expected until December.

A map shows the former site of the Domtar creosote plant. (Photo Credit: CBC)

 

Dangerous Goods Industry Survey Identifies Compliance Challenges

Labelmaster (a U.S.-based provider of labels, packaging and technology related to the transport of dangerous goods and hazardous materials), recently announced the results of its annual 2018 Global Dangerous Goods Confidence Outlook. Sponsored by Labelmaster, International Air Transport Association (IATA), and Hazardous Cargo Bulletin, the survey was conducted to gain insight into how organizations around the globe approach dangerous goods shipping and handling, and the challenges they face.

“Shipping dangerous goods is complex and high-risk, and those responsible for compliance have an increasingly critical job,” said Rob Finn, vice president of marketing & product management at Labelmaster. “In an effort to better understand today’s dangerous goods landscape, Labelmaster, IATA and Hazardous Cargo Bulletin partnered to gather insights from dangerous goods professionals across the globe. We found that while many organizations have the necessary infrastructure, training and processes to ensure compliance across their supply chains, a large number do not.”

The survey covered personal profile information, including: respondent location, most common DG hazard class materials handled, contact role, etc.; training and DG enforcement concerns; compliance challenges; use of technology; comparison to the 2017 survey results; and other leading industry concerns.

Here are some of the key results from the survey:

Keeping up with regulations and ensuring compliance is challenging: Regulatory compliance is critical to an organization’s ability to maintain a smooth supply chain. Yet with growing volumes and types of DG, increasingly complex supply chains, and more extensive regulations, many industry professionals find it challenging to do their jobs effectively and efficiently. In fact:

  • 51 percent find it challenging to keep up with the latest regulations.
  • 15 percent were not confident that they can ensure DG regulatory compliance across their entire organization, and 13 percent were unsure.
  • 58 percent feel that even if they follow the regulations perfectly there is a chance their shipments will be stopped.

When asked to rank their greatest challenge to compliance: budget constraints (28 percent); company leadership not aware of risk (21 percent); insufficient or ineffective training (19 percent); lack of technology (17 percent); difficulty in keeping up with changing regulations (15 percent).

Compliance technology and training is often inadequate: Those responsible for DG face an uphill battle – not only in meeting evolving regulations, but also in overcoming inadequate infrastructure and training. Technology is critical to the supply chain, and significantly improves efficiency, speed, accuracy and more. And even with a number of technology resources available, 28 percent of dangerous professionals are still doing everything manually. Furthermore, 15 percent believe their company’s infrastructure ability to quickly adapt to regulatory and supply chain changes is “lagging behind the industry,” 65 percent said it is “current, but need updating” and 21 percent believe it is “advanced – ahead of the industry.”

The need for improvement extends to training as well. One-quarter of respondents feel their company’s training does not adequately prepare people within the organization to comply with dangerous shipping regulations. In many cases, the scope of employees being trained needs to be expanded. In fact, 67 percent of respondents believe dangerous goods training should be extended to other departments across their company.

An organization’s attitude towards compliance impacts its level of investment: An organization’s attitude towards dangerous goods compliance has a direct impact on how much a company invests in compliance resources. Unfortunately, their attitude towards compliance often does not reflect its true value. According to the survey:

  • 16 percent indicated that dangerous goods compliance is not a major priority for their company.
  • 54 percent wish their companies would understand that supply chain and dangerous shipping management could be a differentiator.
  • 27 percent think their company’s investment to support dangerous goods compliance is “not adequate to meet current needs.”
  • 28 percent believe their company complies “only because regulations mandate it, and adhere to minimum requirements,” while 48 percent believe their company “goes beyond requirements,” and 23 percent view compliance as a “competitive advantage.”

    Which Type of Technology Companies Use to Ship Dangerous Goods

Dangerous goods professionals desire additional support: Investment in infrastructure and training is critical to enabling DG professionals to do their jobs effectively and efficiently, and whether their budgets have increased, decreased or stayed the same, DG professionals desire additional support. When asked how they would prioritize financial support from their organization: more effective training (42 percent); technology for better supply chain efficiency and compliance (29 percent); wider access to the latest regulatory resources and manuals (18 percent); additional headcount (12 percent).

Finn added, “The risk associated with shipping and handling dangerous goods is greater than ever and industry professionals responsible for managing it need the proper technology, training and regulatory access to ensure they are moving goods in a secure, safe, compliant and efficient manner. Unfortunately, obtaining the necessary budget and resources likely requires buy-in from executive leadership, which can be an uphill battle. So how do you get that buy-in? It starts with changing the conversation around dangerous goods management.”

Changing the Conversation with Senior Leadership

Changing the conversation means reframing the overall view of dangerous goods management within an organization. This begins with dangerous goods professionals quantitatively demonstrating how their compliance program can reduce costs and increase revenue to make a positive contribution to the company’s bottom line. Simply put, it is defining your company’s “total value of compliance,” which takes into account three factors:

  • The cost of maintaining compliance throughout the supply chain, such as expenses for people, compliance products, software & technology, reporting, training, etc.
  • The cost of non-compliance due to errors and lapses, such as penalties, carrier refusal and delays, fines, remediation, higher insurance costs, etc.
  • The opportunities of higher level compliance-enabling differentiation, revenue growth and faster cash flows, such as faster product deliveries, increased brand equity, the ability to offer a wider range of products, etc.

This Total Value of Compliance (TVC) framework helps dangerous goods  companies make compliance a powerful, revenue-positive aspect of their business. To learn more about the total value of compliance, download a TVC technical brief and schedule a free assessment, visit www.labelmaster.com/tvc.

To read the full report, visit www.labelmaster.com/dg-compliance-outlook.

About Labelmaster

Labelmaster helps companies navigate and comply with the regulations that govern the transport of dangerous goods and hazardous materials. From hazmat labels and UN certified packaging, hazmat placards and regulatory publications, to advanced technology and regulatory training, Labelmaster’s comprehensive offering of i software, products, and services help customers remain compliant with all dangerous goods regulations, mitigate risk and maintain smooth, safe operations.  To learn more, visit www.labelmaster.com.

 

British Columbia: Invitation to Participate: Land Remediation Client Survey

The British Columbia Ministry of Environment and Climate Change Strategy is requesting the assistance on B.C. environmental professionals to complete a survey regarding the suite of contaminated site services provided by the Land Remediation Section.  The survey is part of an internal Ministry effort to examine and evaluate the ways in which contaminated sites services are provided in support of administering the Environmental Management Act and Contaminated Sites Regulation, and feedback will inform efforts to improve the client experience in obtaining these services.

The survey takes approximately 10 minutes to complete, allowing for more or less time depending on how many or few contaminated sites services you use. The survey is open for approximately 6 weeks, and will close on September 5, 2018.

Questions regarding the survey can be forwarded to site@gov.bc.ca.

 

Environmental Job Market Trends in Canada 2014-2017

ECO Canada recently issued an Environmental Job Market Trends Report that shows that the environmental job market rebounded in Canada last year with 22.7 thousand job ads, reflecting a 9% increase from 2016 levels.  On the other hand, total job ads peaked in 2014 at 1.30 million, decreased to 1.07 million by 2016 (a drop of 18%) and slightly dipped in 2017 with 1.05 million job ads, reflecting a 2% decline.

  • Employment increases within key industries that employ a number of environmental workers, which includes professional, scientific and technical services;
  • Resurgence in goods-producing sectors such as manufacturing, construction, and energy; and
  • Provincial governments implementing climate change plans.

The report states that Ontario, Alberta and British Columbia are the provinces that have consistently shown the most demand for environmental professionals between 2014 and 2017.

Managers in financial and business services had the highest job ad growth rate with close to 30%, from 1,090 job ads in 2016 to 1,410 in 2017.  Agriculture/horticultural workers, technical inspectors/regulatory officers and engineers, with an environmental function attached to the roles, remained the most sought-after positions with 2,870, 3,020 and 2,110 job ads in 2017 respectively.

ECO Canada develops programs that help individuals build meaningful environmental careers, provides employers with resources to find and keep the best environmental practitioners and informs educators and governments of employment trends to ensure the ongoing prosperity of Canada’s growing environmental sector.

 

The National Brownfield Summit – A Brief Recap

By David Nguyen – Staff Writer

This year’s conference is about charting the future of the CBN. (Image from CBN).

On June 13, 2018, The Canadian Brownfields Network (CBN) held their 8th annual conference, taking the form of a National Brownfield Summit. This year also marks the 15th anniversary of the 2003 National Roundtable on the Environment and the Economy report, and the cornerstone of this year’s summit was to revisit the original report and reflect on the progress since then, as well as the challenges that still need to be addressed.

Keynote Speaker

After an introduction by president Grant Walsom, the conference began with the keynote speaker Marlene Coffey, Executive Director of the Ontario Non-Profit Housing Association, who spoke about previous examples of the developments on Brownfields, including housing developed on a Goodyear Tires site, or the Vancouver Olympic village or Toronto Pan American housing facilities.

She spoke of Toronto’s current housing crisis and how costs have outpaced income for many renters due to the market response to the economic growth in the Greater Toronto Area, as well as Hamilton and Waterloo. She also spoke about how condominium development is preferred due to the pre-selling and reselling markets providing profit and equity for the developer before and during construction.  Contrast that to rental housing, where developers of must put up front all costs of development before any profits.

The city of Toronto’s plan to address these concerns include building 69 000 affordable rental units within 10 years, extending the life of 260 000 units, as well as income support for 311 000 households. In addition, the federal government launched the National Housing Strategy in 2017, with $40 billion over 10 years to support affordable housing initiatives across Canada. Coffey reports that municipality participation is key to obtaining funding for affordable housing, and a role that can be played is to donate available land for development.

Current Affairs

A series of professional presentations followed, discussing various emerging investigation and remediation techniques. These included Dr. Barbara A. Zeeb discussing the use of phytotechnologies to remediate brownfield sites. She compared the traditional method of soil excavation, transport, and disposal to phytoextraction – the use of plants to remove the contaminant while leaving the soil intact and reusable, such as using natural and native species to remove organics like DDT. Other benefits include its cost effectiveness and the uptake of greenhouse gasses, but technologies are site specific, and can take years to remediate fully – highlighting the role that phytoremediation can play alongside traditional remediation methods.

A legal update with lawyer John Georgakopoulos provided an overview of legal cases currently before the courts, with implications for the brownfield development. His presentation compared cases of regulatory liability to civil liability and about managing environmental liabilities through exercising due diligence. He noted, however, that due diligence plays a bigger role in regulatory liability and a smaller role in civil liability, and he encouraged environmental liability protections like environmental insurance and regulatory liability protection.

Cross-Country Check-Up Panelists Kerri Skelly (front left), Lisa Fairweather (centre) and Krista Barfoot (left) with President D. Grant Walsom (back). (Photo from the CBN).

A cross-country checkup with panelists from across Canada discussed the changing landscape for excess soils. Speakers include Krista Barfoot (of Jacobs Engineering Group) speaking about Ontario’s proposed guidelines on excess soils, such as the emphasis on the use of excess soil management plans and addressing issues such as situations where there is no beneficial reuse site. Lisa Fairweather spoke about the Alberta’s Remediation Certificate and its impacts on reducing barriers to brownfields development; and Kerri Skelly spoke about British Columbia’s new excess soil regulations and its goals of clarifying rules for businesses moving soil and increasing the opportunity for soil reuse.

Angus Ross (left) with Grant Walsom. (Photo from the CBN).

Before breaking up into working groups, the final presentations reviewed the current state of brownfield development in Canada. Angus Ross, who chaired the original task force, discussed how the National Strategy succeeded in addressing liability issues, financial funding, and building public awareness of brownfields. A major recommendation was the formation of a national brownfield network, which led to the CBN.

Ryerson PhD student Reanne Ridsdale presented findings on a survey of about 6,500 brownfield remediated sites across Canada, where 80 participants were polled, including environmental consultants, government officials, lawyers and financiers.

Reanne Ridsdale presenting the results of the CBN/Ryerson survey. (Photo from the Daily Commercial News).

Following was a presentation by a Ryerson student planning studio group compared brownfield policies of each province, based on criteria such as clear policies, an accessible brownfield site inventory, and incentives for development. Ontario, Quebec, and British Columbia were considered to be very progressive in their policies towards brownfield development, but improvements could still be made across Canada in terms of standardizing rules and policies and producing developer friendly guidelines for site remediation. Then PhD student Reanne Ridsdale talked about the results of the CBN/Ryerson survey of the brownfield community’s view of progress in the last 15 years. Respondents indicated that the CBN is too eastern focused on central and eastern Canada, with little presence in the Prairies, as well as being too research-focussed and not conducting enough outreach.

Charting the Future

The day was capped off with breakout discussion groups to discuss “challenge questions” and allow attendees to contribute ideas to future CBN activities to advance brownfield developments. Challenge question topics included the roles of the federal, provincial, and municipal governments, the development of a brownfield inventory, innovations in brownfield developments, and the societal impacts of brownfield development on communities. One of the key discussion points was for the CBN to promote a “Put Brownfields First” mentality, particularly within governments. This includes developing a financing model/regime for governments to support brownfield developments, particularly in smaller municipalities, as well as to harmonize rules and guidelines for brownfield development. In addition, the CBN should facilitate the education of brownfields to local communities and involve land owners and developers in the process of implementing brownfield policies.

The National Brownfield Summit provided an amazing opportunity for members and attendees to provide input towards the goals of the CBN. More information about the Canadian Brownfields Network can be found at https://canadianbrownfieldsnetwork.ca/ including the summit program and information about the presenters.

Snapshot of the Canadian Brownfields Programs

As reported by Don Proctor in The Daily Commercial News, the federal government has an important role to play in supporting brownfield development, suggests a recent report authored by third-year undergraduate Ryerson University students working on behalf of the Canadian Brownfields Network (CBN).

“There is a sense among industry professionals and academics that the industry as a whole has not progressed as much as it should,” said one of the students, David Sturgeon, at the CBN’s annual conference held recently at the downtown Toronto university campus.

Map of Brownfield Sites in Regina, Saskatchewan

The students conducted a broad snapshot of federal brownfield programs, highlighting cleanup and best practices.

Sturgeon said the student team organized a three-tier rating scoresheet for each province’s progress on brownfields. B.C., Ontario and Quebec got the highest marks. Quebec is a leader because of its incentives-based cleanup programs. One initiative offers 70 per cent funding for onsite remediation work.

Quebec also has an accessible and up-to-date brownfield site inventory, which is a step ahead of other provinces, Sturgeon told delegates.

While the country’s three most populous provinces scored high, the students ranked Alberta lower down, closer to the middle tier.

“It (the Alberta government) has made quite a bit of progress towards cleanup in the last couple of decades,” Sturgeon said. “But where they struggle is helping developers to act sooner than later on idle or vacant contaminated sites.”

The student team was led by Chris De Sousa, the vice-president of the CBN and a professor at the School of Urban and Regional Planning at Ryerson University. De Sousa said the study compiled extensive information on brownfields from federal, provincial and territorial governments. Also reviewed were provincial stakeholder groups and comparisons were made with the U.S. and the United Kingdom.

Reanne Ridsdale, a Ryerson PhD student, conducted research into actual practice versus the objectives outlined in the National Round Table on the Environment and the Economy (NRTEE), founded in the late 1980s. For a survey of about 6,500 brownfield remediated sites across Canada, Ridsdale polled 80 participants, including environmental consultants, government officials, several lawyers and financiers.

Eighty-five per cent of those polled said brownfields were a medium to high priority in their organization.

She said 59 of the 80 respondents indicated Canada would benefit from a national fund for brownfield redevelopment. The top three developmental barriers indicated by respondents deal with remediation costs and lack of information available on site conditions, Ridsdale said.

The survey also supported the CBN as a national organization but some respondents were negative because the CBN does not receive federal funding so its scope is limited.

“We are a little bit eastern-centric,” which is probably because of the lack of funding, Ridsdale told delegates, adding the survey results will be published as part of a white paper this summer.

Angus Ross, chairman of L and A Concepts, chaired two government task forces on brownfields, including one that created the National Brownfield Redevelopment Strategy for Canada in 2003. The findings were not the last word on brownfields “but they did a tremendous job in kickstarting the entire brownfield file in Canada,” he said.

Ross, who was appointed by the federal government in 1996 to head the NRTEE and in 2004 to chair the CBN’s advisory panel, said brownfields became “a household word” in the early 2000s through media reports on the NRTEE.

“We got very immediate provincial and municipal buy-in,” he told delegates at the conference.

Hamilton Waterfront

Nano-Scale Selective Ion Exchange used to Remove Radioactive Contamination from Water

Researchers from the University of Helsinki in Finland recently reported that they have developed a new method to remove radioactive contamination from water.  They claim their method of nano-scale selective ion exchange is faster than the conventional method and more environmentally-friendly as less radioactive solid waste is produced.

Risto Koivula, researcher at the University of Helsinki

The new method of selective ion exchange uses electrospun sodium titanate.  Electrospinning is a fibre production method which uses electric force to draw charged threads of polymer solutions or polymer melts up to fiber diameters in the order of some hundred nanometers  “The advantages of electrospun materials are due to the kinetics, i.e. reaction speed, of ion exchange,” says Risto Koivula, a scientist in the research group Ion Exchange for Nuclear Waste Treatment and for Recycling at the Department of Chemistry at the University of Helsinki.

One conventional method of removing radioactive ions from water is using granular sodium titanate as an ion exchange medium.  It is currently used to treat the 120,000 cubic meters of radioactive wastewater generated as a result of the Fukushima, Japan nuclear accident.  As radioactive wastewater is run through the ion exchanger, the radio-active ions are exchanged with the sodium in the sodium titantate.  The radioactive pollutants remain bound by the granules in the ion exchange unit.

Sodium Titanate fibres

The advantage of sodium titanate over other ion exchange media is that it is selective, which means that it is picks out only the radioactive ions from the water.  One disadvantage of ion exchange is that a water pollution problem is being transferred into a waste management problem.  When the ion exchange capacity is filled, the filtering material has to be switched out.  This leaves solid radio-active waste which must be managed.

The utilization of electrospun sodium titanate results in nano-scale spindles.  The result is an ion exchange solution that occupies less space but provides an equal treatment capability.  “Since less electrospun material is needed from the start of the process, the radio-active waste requiring a permanent repository will also fit in a smaller space,” says Koivula.

The electrospinning equipment at the University of Helsinki was developed and built in the Centre of Excellence for Atomic Layer Deposition, led by Mikko Ritala. The researchers successfully tried this quite simple method for working sodium titanate into fibre.  Koivula’s team studied the ion exchange features of fibre produced this way and found it worked like the commercially produced ones.

The utilization of this selective ion exchange method could be applied to the sites with groundwater contaminated with radioactive ions.

In Canada, the Town of Port Hope (located approximately 100 km east to Toronto) has over 1 million cubic metres of low-level radioactive waste as well as radioactive waste in treatment ponds.  The source of the radioactive contamination is the historic operation of the former radium and uranium refining activities of Eldorado Nuclear.  The wastewater treatment facility at Port Hope is a two-stage process that removes salts, heavy metals, and contaminants such as radium and arsenic.  The process involves chemical precipitation with clarification followed by reverse osmosis.